I have tried printing an EVRi Business shipping label and am seeing an error returned:

The remote server returned an error: (403) Forbidden 


Such an error occurs when invoicing flag is not correctly configured on your EVRi Business account. In order to resolve it, please get in touch with your EVRi account manager and ask them to apply the invoicing flag in their database. 

Alternatively, you can report this error to Linnworks Technical Support Team, who will then submit the same request to EVRi via email.